copyright header for new file src/tools/why3wc.mll
copyright header for new file src/tools/why3wc.mll

douglas-larocca/why3,ssaavedra/why3,ssaavedra/why3,douglas-larocca/why3,ssaavedra/why3,jpdeplaix/why3,jpdeplaix/why3,jpdeplaix/why3,douglas-larocca/why3